 Catalytic pyrolysis is a promising method for converting lignocellulosic biomass into chemicals and fuels that can be used in current petroleum infrastructures. This process involves the use of catalysts to modify bio oils produced during pyrolysis, which is the thermal decomposition of organic materials under high temperatures without oxygen present. These catalysts are designed to eliminate or substitute oxygen, oxygen containing functional groups in the bio oil, as well as increase its hydrogen to carbon ratio. Additionally, researchers have been focusing on the development of catalysts that combine hydrodeoxygenation and zeolite cracking processes. These catalysts are designed to produce drop-in fuels and petrochemical commodities from wood and other lignocellulosic biomass streams. This article was authored by Theodore Dickerson and Wansoria.